From 69502140d2e229a314bb1eb192d31b9a2c14f981 Mon Sep 17 00:00:00 2001
From: Guilhem Moulin <guilhem@fripost.org>
Date: Fri, 31 Jul 2015 22:40:28 +0200
Subject: [PATCH] Log debug messages to STDERR unless 'logfile' is set.

However don't include timestamps to STDERR, that's the job of the
syslog.
---
 imapsync             | 10 ++++++++--
 lib/Net/IMAP/Sync.pm |  7 +++++--
 2 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/imapsync b/imapsync
index b0226c3..30982af 100755
--- a/imapsync
+++ b/imapsync
@@ -96,6 +96,9 @@ my ($DBFILE, $LOCKFILE, $LOGGER_FD);
             or die "Can't open $CONF->{_}->{logfile}: $!\n";
         $LOGGER_FD->autoflush(1);
     }
+    elsif ($CONFIG{debug}) {
+        $LOGGER_FD = \*STDERR;
+    }
 }
 my $DBH;
 
@@ -196,14 +199,17 @@ $DBH->do('PRAGMA foreign_keys = ON');
 sub msg($@) {
     my $name = shift;
     return unless @_;
-    logger($name, @_) if defined $LOGGER_FD and $LOGGER_FD ne \*STDERR;
+    logger($name, @_) if defined $LOGGER_FD and $LOGGER_FD->fileno != fileno STDERR;
     my $prefix = defined $name ? "$name: " : '';
     print STDERR $prefix, @_, "\n";
 }
 sub logger($@) {
     my $name = shift;
     return unless @_ and defined $LOGGER_FD;
-    my $prefix = strftime "%b %e %H:%M:%S ", localtime;
+    my $prefix = '';
+    if ($LOGGER_FD->fileno != fileno STDERR) {
+        $prefix = strftime "%b %e %H:%M:%S ", localtime;
+    }
     $prefix .= "$name: " if defined $name;
     $LOGGER_FD->say($prefix, @_);
 }
diff --git a/lib/Net/IMAP/Sync.pm b/lib/Net/IMAP/Sync.pm
index 47c6258..b44f0a6 100644
--- a/lib/Net/IMAP/Sync.pm
+++ b/lib/Net/IMAP/Sync.pm
@@ -392,7 +392,7 @@ sub DESTROY($) {
 sub log($@) {
     my $self = shift;
     return unless @_;
-    $self->logger(@_) if defined $self->{'logger-fd'} and $self->{'logger-fd'} ne \*STDERR;
+    $self->logger(@_) if defined $self->{'logger-fd'} and $self->{'logger-fd'}->fileno != fileno STDERR;
     my $prefix = defined $self->{name} ? $self->{name} : '';
     $prefix .= "($self->{_SELECTED})" if $self->{_STATE} eq 'SELECTED';
     print STDERR $prefix, ': ', @_, "\n";
@@ -400,7 +400,10 @@ sub log($@) {
 sub logger($@) {
     my $self = shift;
     return unless @_ and defined $self->{'logger-fd'};
-    my $prefix = strftime "%b %e %H:%M:%S ", localtime;
+    my $prefix = '';
+    if ($self->{'logger-fd'}->fileno != fileno STDERR) {
+        $prefix = strftime "%b %e %H:%M:%S ", localtime;
+    }
     $prefix .= defined "$self->{name}" ? $self->{name} : '';
     $prefix .= "($self->{_SELECTED})" if $self->{_STATE} eq 'SELECTED';
     $self->{'logger-fd'}->say($prefix, ': ', @_);
-- 
2.39.2